{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:MPD5S67BCBVV47IWQF5NREYHK5","short_pith_number":"pith:MPD5S67B","canonical_record":{"source":{"id":"2104.10551","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-04-21T14:18:43Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"1f533ee1dcd9b733473bdf6afd2610ecf212d12ca3d76a59b8093cd82f8d24eb","abstract_canon_sha256":"57ebce1e7a747242f0cdb98573144156514404915035df95233c60900d747458"},"schema_version":"1.0"},"canonical_sha256":"63c7d97be1106b5e7d16817ad893075755c13c93f7377c2db03f4ef1500cf108","source":{"kind":"arxiv","id":"2104.10551","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.10551","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"arxiv_version","alias_value":"2104.10551v3","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.10551","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_12","alias_value":"MPD5S67BCBVV","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"MPD5S67BCBVV47IW","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"MPD5S67B","created_at":"2026-07-05T04:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:MPD5S67BCBVV47IWQF5NREYHK5","target":"record","payload":{"canonical_record":{"source":{"id":"2104.10551","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-04-21T14:18:43Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"1f533ee1dcd9b733473bdf6afd2610ecf212d12ca3d76a59b8093cd82f8d24eb","abstract_canon_sha256":"57ebce1e7a747242f0cdb98573144156514404915035df95233c60900d747458"},"schema_version":"1.0"},"canonical_sha256":"63c7d97be1106b5e7d16817ad893075755c13c93f7377c2db03f4ef1500cf108","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:31:10.562867Z","signature_b64":"eDzL69mWea8CcFkM/NYqYHCcjgZTLTFbqmexzHockaq0QjZgN1Xmw3qipTwGyd1vv0TyGjtiBhFXGMZGNEahCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63c7d97be1106b5e7d16817ad893075755c13c93f7377c2db03f4ef1500cf108","last_reissued_at":"2026-07-05T04:31:10.562406Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:31:10.562406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.10551","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:31:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FD5Olzpd+JlZmzB9RDHi7YFjHZPRpWfRZCpFZXtMr8Dfi23jV37KCgwjmaEzD0fJpWIXFE/XmpyvxdQOUYeWAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T00:27:42.836869Z"},"content_sha256":"f2009eb482db0c3176f3f03612e4f543e5b2c448bf466c74792b9c415856eaee","schema_version":"1.0","event_id":"sha256:f2009eb482db0c3176f3f03612e4f543e5b2c448bf466c74792b9c415856eaee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:MPD5S67BCBVV47IWQF5NREYHK5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Real-time detection of Ochratoxin A in wine through insight of aptamer conformation in conjunction with graphene field-effect transistor","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Aleksei V. Emelianov, Alexey V. Orlov, Deji Akinwande, Dmitry Kireev, Ivana Gadjanski, Ivan Bobrinetskiy, Nikita Nekrasov, Petr I. Nikitin, Stefan Jaric","submitted_at":"2021-04-21T14:18:43Z","abstract_excerpt":"Mycotoxins comprise a frequent type of toxins present in food and feed. The problem of mycotoxin contamination has been recently aggravated due to the increased complexity of the farm-to-fork chains, resulting in negative effects on human and animal health and, consequently, economics. The easy-to-use, on-site, on-demand, and rapid monitoring of mycotoxins in food/feed is highly desired. In this work, we report on an advanced mycotoxin biosensor based on an array of graphene field-effect transistors integrated on a single silicon chip. A specifically designed aptamer against Ochratoxin A (OTA)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.10551","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.10551/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:31:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"24TzoFetQYeQfsSY7NWtwh7gnGX5U61ZfGDHBdvFK13m0Wb3vQA1rTmtlCW0vGChPJsztL3XMUdo/Sf/V+oyCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T00:27:42.837371Z"},"content_sha256":"bd99da23d8d242ef5550a9090593e8cc19c1984142ef029ec493aadae249bbfc","schema_version":"1.0","event_id":"sha256:bd99da23d8d242ef5550a9090593e8cc19c1984142ef029ec493aadae249bbfc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MPD5S67BCBVV47IWQF5NREYHK5/bundle.json","state_url":"https://pith.science/pith/MPD5S67BCBVV47IWQF5NREYHK5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MPD5S67BCBVV47IWQF5NREYHK5/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-23T00:27:42Z","links":{"resolver":"https://pith.science/pith/MPD5S67BCBVV47IWQF5NREYHK5","bundle":"https://pith.science/pith/MPD5S67BCBVV47IWQF5NREYHK5/bundle.json","state":"https://pith.science/pith/MPD5S67BCBVV47IWQF5NREYHK5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MPD5S67BCBVV47IWQF5NREYHK5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:MPD5S67BCBVV47IWQF5NREYHK5","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"57ebce1e7a747242f0cdb98573144156514404915035df95233c60900d747458","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-04-21T14:18:43Z","title_canon_sha256":"1f533ee1dcd9b733473bdf6afd2610ecf212d12ca3d76a59b8093cd82f8d24eb"},"schema_version":"1.0","source":{"id":"2104.10551","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.10551","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"arxiv_version","alias_value":"2104.10551v3","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.10551","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_12","alias_value":"MPD5S67BCBVV","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"MPD5S67BCBVV47IW","created_at":"2026-07-05T04:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"MPD5S67B","created_at":"2026-07-05T04:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:bd99da23d8d242ef5550a9090593e8cc19c1984142ef029ec493aadae249bbfc","target":"graph","created_at":"2026-07-05T04:31:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.10551/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Mycotoxins comprise a frequent type of toxins present in food and feed. The problem of mycotoxin contamination has been recently aggravated due to the increased complexity of the farm-to-fork chains, resulting in negative effects on human and animal health and, consequently, economics. The easy-to-use, on-site, on-demand, and rapid monitoring of mycotoxins in food/feed is highly desired. In this work, we report on an advanced mycotoxin biosensor based on an array of graphene field-effect transistors integrated on a single silicon chip. A specifically designed aptamer against Ochratoxin A (OTA)","authors_text":"Aleksei V. Emelianov, Alexey V. Orlov, Deji Akinwande, Dmitry Kireev, Ivana Gadjanski, Ivan Bobrinetskiy, Nikita Nekrasov, Petr I. Nikitin, Stefan Jaric","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-04-21T14:18:43Z","title":"Real-time detection of Ochratoxin A in wine through insight of aptamer conformation in conjunction with graphene field-effect transistor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.10551","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f2009eb482db0c3176f3f03612e4f543e5b2c448bf466c74792b9c415856eaee","target":"record","created_at":"2026-07-05T04:31:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"57ebce1e7a747242f0cdb98573144156514404915035df95233c60900d747458","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-04-21T14:18:43Z","title_canon_sha256":"1f533ee1dcd9b733473bdf6afd2610ecf212d12ca3d76a59b8093cd82f8d24eb"},"schema_version":"1.0","source":{"id":"2104.10551","kind":"arxiv","version":3}},"canonical_sha256":"63c7d97be1106b5e7d16817ad893075755c13c93f7377c2db03f4ef1500cf108","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63c7d97be1106b5e7d16817ad893075755c13c93f7377c2db03f4ef1500cf108","first_computed_at":"2026-07-05T04:31:10.562406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:31:10.562406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eDzL69mWea8CcFkM/NYqYHCcjgZTLTFbqmexzHockaq0QjZgN1Xmw3qipTwGyd1vv0TyGjtiBhFXGMZGNEahCg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:31:10.562867Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.10551","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2009eb482db0c3176f3f03612e4f543e5b2c448bf466c74792b9c415856eaee","sha256:bd99da23d8d242ef5550a9090593e8cc19c1984142ef029ec493aadae249bbfc"],"state_sha256":"bfed4fc9f97162f2518dbf3d077847d050cfb1886cb1d4a1075a012b6a58d5e6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QxO/aUJYDt9g8Z4gE7RT+dyUmv3/cMEaSTBNB6IvpzhbQ/TM2Qk7YdbgaaGWaOJ20ILfQZBepQu9ToAj1kPfBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T00:27:42.841775Z","bundle_sha256":"9dae55aced270f333dee1d137563a52b322039c845c9449e4af86dd456250b64"}}